Oil-gas lamp.



No. 656,327. Patented Aug. 2|, I900. A. S. NEWBY.

01L GAS LAMP.

(Application filed. Apr. 12, 1899.)

(N0 Model.) 2 Sheets-Sheet I.

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(Application filed Apr. 12, 1899.)

2 Sheets-Sham 2,

No Model.)

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UNI'IED STATES PATENT OFFICE.

ALBERT S. NEVVBY, OF KANSAS CITY, MISSOURI, ASSIGNOR TO HIMSELF, AND BARRON G. COLLIER, OF MEMPHIS, TENNESSEE.

.- OIL-GAS LAMP.

SPECIFICATION forming part of Letters Patent No. 656,327, dated August 21, 1900.

Application filed. April 12, 1899.

T0 at whom it may concern.-

Be it known that I, ALBERT S. NE WBY, of Kansas City, in the county of Jackson and State of Missouri, have invented a new and Improved Oil-Gas Lamp, of which the following is a full, clear, and exact description.

My invention relates to an improvement in oil-gas lamps, or that kind which are supplied with a generator heated by the flame of the lamp, so as to convert the oil into gas before it is used.

My invention comprises the novel features which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar characters of reference indicate corresponding parts in all the views.'

Figure 1 is an elevation of my lamp, showing the bowl in section. Fig. 2 is a sectional plan taken upon the line 2 2 in Fig. 1. Fig. 3 is a sectional elevation showing the burner and generator. Fig. 4 is a sectional plan taken upon the line 4 4. in Fig. 3. Fig. 5 is a sectional plan taken upon the line 5 5 in Fig. 3. Fig. 6 is a section taken on the line 6 6 in Fig. 3, and Figs. 7 and 8 are respectively a plan and a transverse sectional view of an absorbent pad,which acts as a torch for heating the generator when the lamp is first put into use.

My lamp is of that kind in which the burner is placed above the bowl or oil-reservoir and the oil is forced to the generator and burner by means of air-pressure in the bowl. The bowl,as herein shown, consists of a spheroidal body A, which is provided with two circular concavities A A located, respectively, in the bottom and top of the body. The lower concavity A forms a circular rim, which enables the bowl to set firmly on any support. The upper concavity A forms a receptacle for the absorbent pad 0 (shown in Figs. 7 and 8) and by which the generator is heated. The oil is placed within the bowl by means of a filling cap a, which is screwed or otherwise secured in place, so as to make the bowl air-tight. Air-pressure is supplied to the bowl through a Valve a,which is adapted to be connected with an air-pump or other source of air under pressure. A pipeB is secured to the bowl in such Serial No. 712,746. (No model.)

a manner that its lower open end is close to the bottom of the bowl and thence extending outward, forming a curve which acts as a convenient handle by which the lamp may be raised. The upper end of said pipe B extends close to the upper portion of the bowl andin a direction extending across said bowl. It is provided with a valve B, by means of which connection between the bowl and the generator may be cut off when desired.

The generator consists of a tube D, which screws into the end of the casing of the valve B and extends over the central upper portion of the bowl. This tube is provided with a partition D, which is provided with a central hole through which the oil passes to the tip. Between this partition and the end of the tube which is secured to the valve B is placed a filler E, which consists of a circular bar of metal substantially filling the tube and provided with a longitudinal groove 6, connecting the pipe B with the hole in the partition D. This groove is made quite small, so that the oil passing through the same is heated and volatilized before it reaches the valve.

The valve consists of the-conical pointed end of a rod or needle F, said rod being provided with screw-threads engaging similar l threads formed at the opposite end of the tube D. A tight joint is made at the point where the needle F enters the tube D by means of a sleeve F, which compresses packing material between itself and the end of the tube. The conical pointed end of the needle F enters the hole in the partition D, the wall of said hole acting as a valve-seat.

The gas after passing through the partition D passes through a side opening into a lateral extension D and within the central hole of this lateral extension is screwed the tip T, which is provided with a small hole for the escape of the gas and by which it is directed upward into the burner. The outwardly-proupper end, through which air is admitted to the burner.

The burner proper consists of the tube I, which fits over the upper end of the collar H and has holes which may be made to register with the holes in the collar II. The tube I has a disk I secured thereto and projecting horizontally, and upon this disk the lower end of the chimney rests. From the outer edge of the disk projects a cylindrical extension I, which forms a petticoat for protect ing the lower end of the burner. The upper end of the tube I is reduced and is provided with a series of holes 76 therein, and within the reduced end of the tube is a ring of gauze L, covering these holes. Surrounding the upper reduced end of the tube I is a cap K, which has holes adapted to register with the holes in the tube I and capable of rotation, so that the effective area of these holes may be reduced at will. This cap is also provided with a circular piece ofgauze L in its upper end through which the gas escapes by which the mantle is raised to incandesence. A bar or plate G is extended upward from the generator close alongside of the burner-tube I. The upper end of this bar extends to a level with or slightly above the holes 7i; in the side of the upper end of the burner. The bar extends downward through the disk I upon which the chimney rests, and has a horizontal extension G, which is made to fit closely about the portion of the tube D where the oil is vaporized. This bar or plate should be of some metal which is a good conductor of heat. By the construction of burner described a portion of the gas will escape from said holes 70 and will be ignited, thus heating the upper end of the bar G. This will conduct the heat downward and keep the generator heated sufficiently to volatilize the oil. By this means the generator may be located beneath the burner and yet be kept at such a temperature as to volatilize the oil. If desired, the upper end of the burner may be provided with the holes is upon one side only, being the side upon which the bar or plate G is located.

Between the bar or plate G and the burnertube is placed a ring J, of asbestos or similar non-conducting material, said ring being provided with radially-extending ribs J, extending outward to such a point that when the chimney is placed in position it will engage the outer edges of these ribs and be thereby held in place. By this means the device usually employed for holding the burner in place and consisting in many cases of a flange of metal placed outside the chimney may be done away with and the cutting off of the light caused thereby avoided. This results in a better illumination immediately beneath the burner and in addition furnishes protection to the chimney against the intense heat of the flame, and thereby reduces the liability to breakage. The asbestos being a non-conductor of heat will not heat up very quickly and will thus protect the chimney against rapid changes of temperature.

The pad 0 (shown in Figs. 7and 8) may be made of asbestos covered with gauze and is designed to be inserted in the concavity A in the upper side of the bowl when the lamp is to be lighted. This pad is soaked with some inflammable liquid, which is lighted and burns long enough to heat the generator to working temperature. The pad may be removed from the lamp when desired.

A burner constructed in the manner of the one herein shown may be readily taken apart for cleaning. To take it apart, it is necessary to unscrew the sleeve H, and then the generator D maybe unscrewed, the filler E being then exposed, so that it may be readily removed from the generator. The tip T may also be readily removed for cleaning whenever necessary. The concavity in the upper side of the bowl makes it possible to place the generator close down to the upper surface of the bowl and yet be able to turn the generator, so as to unscrew it. Without such a concavity in the bowl the generator would have to be placed at a greater elevation above the bowl in order that it might be removed.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patent- 1. A burner, comprising a tube designed to be supplied with an inflammable mixture and having auxiliary side openings for the escape of the mixture, a slide covering said openings and having holes adapted to register with said openings, a bar insulated from the tube and extending in front of the openings thereof and heated by the flames therefrom, and a generator heated by said bar and discharging into the burner.

2. A burner, comprising a tube designed to be supplied with an inflammable mixture,said tube having its upper end reduced and provided with openings, a ring of gauze in the reduced end of the tube and covering the openings thereof and a cap mounted to rotate on the reduced upper end of the said tube, said cap having a gauze-covered top and provided with openings adapted to register with the openings of the said tube, substantially as described.

3. An oil-gas lamp, comprising a generator, a burner having auxiliary combustion-openings, a bar in front of said auxiliary openings and heated by the flame thereof, said bar extending to and in contact with the generator and an insulating-ring between the burner and bar.

4. In an oil-gas lamp, a generator comprising a straight tube having a perforated partition designed to act as avalve-seat, a plug filling the tube on the supply side of said partition, and extending from the partition to the end of the tube and having a peripheral groove communicating at one end with the oil-supply and at the other end with the opening in the partition, a valve stem or needle within the opposite end of the tube and adapted to close the opening in the partition, a lateral extension on said tube and communicating therewith on the valve side of the partition, a tip in said extension and a burner-tube supported on said extension.

5. In an oil-gas lamp, a generator comprising a straight tube provided with an apertured partition and with a lateral extension at one side of the partition, said extension carrying a burner, and a burner-tube support, a plug in the tube on one side of the partition and extending from the partition to the end of the tube, said plug fitting snugly in the tube and provided with a peripheral longitudinal groove, and a rod in the tube on the side of the partition opposite the plug and having a pointed end adapted to close the aperture of the said partition, substantially as described.

6. In an oil-gas lamp, the combination with a generator-tube, of a burner-tube supported on the generator-tube, said tube having openings at its upper and lower ends and provided above the lower openings with a disk having a downwardly-projecting marginal flange, and a bar curved in cross-section and having its lower end resting upon the generator-tube and extending up through the disk on a level with the upper end of the burner-tube and opposite the openings therein, substantially as described.

7. In an oil-gas lamp, the combination with a generator-tube having a lateral apertured extension carrying a burner-tip, of a collar secured on the extension of the generatortube and provided with an annular flange near its upper end, and a burner-tube supported on the flange of the collar, said tube being provided with openings at its lower end and above said openings with a disk havin g a downwardly-proj ectin g marginal flange, substantially as described.

8. In an oil-gas lamp, the combination with a generator having a laterally-projecting collar, of a burner-tube supported upon the said collar, said tube having upper and lower openings and provided above the lower openings with a disk having a downwardly-projecting marginal flange, a perforated cap for the tube, a bar extending upward from the generator through the disk of the tube and in front of the openings at its upper end, and a ring of asbestos surrounding the tube and resting upon the disk of the same, said ring being provided with projections, substantially as described.

9. In an oilgas lamp, a horizontally-arranged generator-tube provided with a lateral extension adapted to carry a burner, and a bowl or fount arranged below the generatortube and having a concavity in its upper face, whereby the concavity is made to serve as a receptacle for an absorbent pad and also as a means whereby the generator-tube may be placed close to the bowl or fount and at the same time permit its ready removal, as set forth.

10. In an oil-gas lamp, a bowl or fount having a concavity in its top and bottom and provided with a pipe having its inner end projecting into the bowl or fount and extending close to the bottom thereof, the outer end of the pipe being curved outward and upward and then inward partially over the bowl or fount and carrying a valve-casing to which a generator-tube is adapted to be connected, substantially as described.

ALBERT S. NEWBY.

Witnesses:

R. N. ALLEN, ERNEST G. FRANKS. 

